Well, a bit of karma came and bit me today.
Back in 1991, when I worked for Ed Seykota (one of the famed “market wizards”), he was actively trading futures. I don’t remember the exact circumstances, but I do remember that there was one particular market he was anticipating a trade on, but his signal never hit. It turns out (again, for a reason I don’t quite recall) that his chart wasn’t even being updated, so he was steadfastly checking it each day for a signal that never appeared. That’s because the chart was basically an oil painting. It never changed.